Classifying matter
Matter that cannot be separated into any other substance and always has exactly the same composition
pure substance
The state of matter in which a substance has a definite shape and a definite volume- atoms do not flow freely
Solid
Physical property
phase change and physical change
Anything that has mass and takes up space
Matter
Two or more substances mixed together but not chemically bonded
mixture
The state of matter in which a substance has a definite volume- atoms have more kinetic energy
Liquid
Chemical change
When a substance goes from a solid state directly to a gaseous state without becoming a liquid first
sublimination
A substance that is made up of only one kind of atom
element
Pure substances can be classified into what two categories
element or compound
The state of matter in which a substance has neither a definite shape nor a definite volume- particles have constant random motion
Gas
A substance that has little tendency to change into other substances is said to have low ________
reactivity
evaporation
substances made of elements joined in fixed proportions
compounds
A homogenous mixture made by dissolving one substance in another
Solution
The fourth state of matter commonly found in the universe
Plasma
The physical property of a liquid to resist flowing
viscosity
The reverse phase change from gas to liqiud
condensation
mixtures made by dissolving one substance into another
homogenous mixture
The substance in a solution that does the dissolving
Solvent
The natural passive movement within gases and liquids that spreads out particles from an area of higher concentration to an area of lower concentration
Diffusion
Which of these materials is both malleable and conducts electricity easily
1. wood 2. a metal 3. ice 4. vegetable oil
a metal
A reversible change that occurs when a substance changes from one state of matter to another
phase change
The energy an object has due to its motion